Tile-molding machine



March 3l, 1925. 1,531,479

, -J. A.- 'RlcKsoN I TILE HOLDING aA-CHINE Filwoct. 21. '1920 3 Sheets-sheet 1 z L.. 5V f l 0 .w

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' J. A. .ERICKSON TILE HOLDING MACHINE Filed oct. 21. 1920 5 sheets-sheet 2 5) /775 HUUB/Vif J. A. ERmKsoN TILE HOLDING MACHINE March 31, 1925. 4 1,531,479

Filed Oct. 21.' 1920 3 Sheets-Sheet I5 Patented Mer. 31, 1925.

UNITED STATES JOHN a. ERICKSON, or wAsnoai/iiunnsora.

TILE-:HOLDING- MACHINE.

Application filed October 21, 1920. Serial No. 418,449.A

To all whom t may concern:

Be it known that I, JOHN A. ERICKSON, a. citizen ot the United States, residing at lVaseca, in the county ot' Waseca and State ot Minnesota, have invented certain new and useful improvements in Tile-Molding Ma chines; and l do hereby declare the following to be a full, clear, and exact description ot' the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to the art of molding' and the specific disclosure selected for illustration shows the invention embodied in a tile or block forming machine.

It is an objeot'of this invention to provide a compact, simple and eilicient machine, by -the use of which, concrete or other tiles or blocks may be quickly and satisfactorily made.

lt is a. further object ot the invention to provide such a machine which can have power applied thereto from a suitable motor, or other source, which power can be efi'iciently controlled.

Gther objects of the invention will appear as the description proceeds, in connection with the accompanying drawings, in which like reference characters indicate, the same parts throughout the different views, and in which, f

Fig. 1 is a side elevation oit the machine, the upper part being shown in section;

Fig. 2 is a sectional view of the machine taken on the line 2-2 of Fig. 1;

Fig. 3 is a partial sectional view similar to the upper part of Fig. land showing the ejecting plungers elevated;

Fig. 4 is a top plan view ot the cores with the machine shown in section, substantially on the line 4,-4 of Fig. 1; and

Fig. 5 is a perspective view of the block or tile formed in the machine.

which is securely bolted thereto at its opposite ends by bolts 6. Mounted on top of the frame members 1 and top brace 5 is a hollow member 7 having a surrounding lange 8 at its lower portion, by means of which it is securely fastened to the members 1 and 5 by the bolts f6, or other suitable fastening means. The member 7 is provided with a plurality of strengthening ribs 9 and has a flange 10 horizontally disposed at its upper end, which is surrounded on three sides by an upwardly and; outwardly extending flange 11. As stated, this flange is omitted at one side, which is the'side toward the back of the machine, and on this side the flange 10 is slightly extended. A

At the central portion or" members 2 of the frame 1 is formed a cylindrical boss 12 and a similar boss 18 is formed at the central portion of the top pieces 4. Firmly secured in these bosses are the cylindrical posts 14, which posts :torm guide members for the heads 15, which are mounted for sliding movement thereon. These heads 15 are `provided with laterally extending ianges 16 and a crosshead 17 extends between the heads and is firmly secured thereto at each end by bolts 18. Y rlhe crosspiece or top brace 5 is provided with an upper flange 19. This tlange is provided with a series of rectangular openings 20. As shown, these openings are arranged in threerows ot four each, andas clearly shown in Figs. 1, 2 and 3, the openings at the sides and ends of member 5 have their outer sides in'substantial alignment with the walls on the inside of member 7. A series ot plungers 21, also shown as of rectangular cross section, are mounted in alignment with the openings 20 and are bolted to and arranged to be carried by the crosshead 17. rlhese plungers are provided with toot brackets 22 and are secured to the head 17 by bolts 23. then the heads 15 are arranged to slide on guides 14, the plungers are caused to rise through the openings 20.

Disposed in the member 7 are a plurality of core members 24, of rectangular cross section and so arranged therein that substantially equal spaces are left between each of them and the walls of member 7. The cores 24 are shown as being slightly tapered at their upper ends and these cores are firmly secured to the flange 19 of member 5 by bolts 25. While six of these core members have been shown of rectangular cross section, it will be understood that the machine may be so constructed that any desired number of any desired cross section may be used.

Secured to each of the side members 3, at the rear side of the machine are bearing brackets 26, and extending across the back of the machine and carried by said brackets is a shaft 27. This shaft carries at one end a clutch pulley 28 secured' thereto by a set screw 29, or other suitable means, which pulley is designed to be driven by a belt-30 adapted to be secured to a driving pulley connected to any suitable source of power. Carried by the shaft 27 and centrally disposed between thev frame members 1, is a driving pinion 31 which is keyed to said shaft and arranged to mesh with the driven gear 32. The gear 32 is keyed to a shaft V33 which also extends across the machineand is carried by bearing brackets 34, yalso bolted to the side members 3 at the back of the machine. This shaft 33 extends be ond the brackets 34 and has cranks 35 rigidly secured to each end thereof. Crank pins 36 extendout-wardly at the end of these cranks and are embraced by straps 37 which are firmly clamped thereon by bolts 38. The end link of a chain 39 surrounds the bolt 38, and is clamped between the ends of the strap 37. This chain is arranged to pass over sheaves 40 carried in brackets 41,

whichare bolted to the flange 8 of member'7. As shown in Fig. 1, these sheaves are so disposed that one side `thereof is in substantial alignment with the vertical axis of guide members 14 when viewed from the end of the machine. The chains 39, after passing over sheaves 40,` extend vertically downward at each'side of the machine and are connectedto eye bolts 42, which are adju'stablyy secured in U-shaped clamp members l43 by nuts 44,which clamp members are bolted to lugs 45 extending outwardly from the members 15, by bolts 46.

The operation of the machine,which will be readily understood, will now be described.

A platen member 47, which is adapted to fit in member 7 around the corresponding core, is placed in position, resting upon flange 19, as shown 'in Figs. 1 and 2. A suitable mixture of concrete, or other material` is then filled in between the cores 24 and between these cores and walls of the member 7. This material is tamped and thoroughly,compacted. in place. When a sufficient amount of material has been placed in the machine, the top of the material is smoothed off, usually in alignment with the top of flange 10 and the clutch pulley 28 then thrown in operation to start the machine. The crank 35 will beturned by shaft 33 through the gears 31 and 32. The chain Ybottom of thev platen is raised above t-he top surface of flange 10 and the top of the core member 24, it can be lifted from theI machine and removed. The material'is of such consistency that it will retain its mold-- ed form and will be V'left on the platen and removed to a suitable location for permanent setting, dryingand curing. When the platen is suiiiciently elevated, the machine will be stopped, and after the platen and block A are removed, the machine will be again started and yoperated to resume the position shown in Fig. 1. Another lplaten can now be placed in the machine and the operation repeated.

As previously stated, the invention is not limited to the .particular form of block shown. Y The member 7 may bemade of any desired shape and any desired number of cores and ejecting plungers may beVV used,'

and blocks of many and various forms may be made.

It'will thus be seen that applicant has provided a simple and compact machine for quickly and eihcientlymaking the articles desired. The machine is rugged inconstruction, has few parts and can easily be kept in operation and repair without the attendence of skilled mechanics. n

Generally stated, the invention consists in the structure 'shown and described Yand set forth in the appended claims.

1vVhat is claimed is:

1. A tile molding machine comprising a frame, a mold box secured lto the top thereof and having a tray formed at'its top portion, spaced core members in said box, a platen movable vertically in said box be`n tween the sides and core members thereof, a reciprocating head in said frame having spaced members secured thereto adapted to contact said platen and means for vertically reciprocating said ,head comprising a crank suitably connected to said head opera-ted under a rotating motion in one direction.

V2. A tile molding machine comprising a frame, a mold box secured tothe topfthereof and having a tray formed at its top portion, spaced' core members 'in said box,a platen movable. vertically in said box between the sides and core members thereof,

a vertically reciprocating head in said frame having spaced upstanding members secured thereto adapted to contact said platen and means forreciproc'ating said head operated under a rotary motion in one direction comprising a flexible member secured at one end to said head and passing over a sheave secured to the upper structure of the machine and a crank to Which the other end of said flexible member s attached.

In testimony whereof I ax my signature in presence of two Witnesses.

JOHN A. ERICKSON.

Witnesses:

EARL SMITH, Gr. O. MILLER. 

